Afila gene effects on total yield of dry pea seed

Abstract

The of gene at its recessive homozygous stage in peas causes the modification of leaves so that they only form vines with stipules instead of leaves of normal structure. The variety Filigreen of the afila type was crossed with twelve varieties with normal leaf structure. The aim was to produce afila genotype effects on the total yield of mature seed in their progeny. The genetic analysis of F1 and F2 generations (the segregation ratio between the normal and afila leaf type being 3:1) proved the monogenic character of this feature. The yield of mature seed in F1 generation, characterized by normal leaf structure, was higher than in the parents of both pea types. The total yield in dry seeds of the plants with normal leaf structure in F2 generation was 3% over the parents, whereas it was 6%, compared to the plants of F1 generation. The average yield of mature seed in afila pea plants was 4% lower than that of their parents, while it was 11% lower compared to the F1 generation. The decrease of the total yield of dry pea seed in F2 generation of the afila genotypes was conditioned by the reduction of the assimilation surface of the plant.